Clear-vision device



Oct. 21, 1930. A. HUPP 1,779,042

CLEAR VISION VDEVICE Filed May 9, 1928 2 Sheets-Sheet l .216 V Q j l k III I (aw-J m Oct. 21, 1930.

A. HUPP CLEAR VISION DEVICE Filed May 9, 1928 2 Shets-Sheet 2 I'l'hlllll'lllillllllrlllnlln :21; jmounting in1whi ch the disc is supported bythe air-pressure,

' Patented o'er; 21,1930

v s m-ran; smart as ALBERT urr, or cHio'AGo, rimmors, A

onnnavisroiv DEVICE ,1 Application filed may 9,

The main objects thisinventionareto provide means forgiving a clearvvisionunder' adverse atmospheric conditions, "for drivers of vehicles, railway engines, motor ,j boatsand thelike. I

3 Ividing meansfor enabling-the engineer. to see i the road ahead an d esp'ecially the signals in stormy weather and in sleet and snow. Herein tofore :it has been necessary in some cases to use peep'f holes which afford a clear vision, butfexpos'e the engineer to they weather. In my'invention I provide a disc which is rotated-at very "high speed. In tests under actual service conditions it been shown 'that thepraingisteam, sleetjor sriowcannot t cloud the vision throughthe dlscas long as;

the disc' is fejv'olving. I The disc may be used directly fora window, or may be placed over ro the windows already provided; In a railway-V engine, the glass disc'is rotatably mounted in a frame which is hinged to the franie of the; V cab window so that the device can be swung.

', out of the way when desired as in cleaning the window."

Other objects and advantages-are to pro-f vide'a clear vision, rotating disc which is mounted at'the margins so that the center of V the disc is unobstructed; to providesuch-af 3o device inwliich'the parts can be made at low cost; to provide frictionless bearings, v .mea-ns ofpocketsinthe ball retaineriring 15. J

whichrare well protected; to provide ade- 7 vice which'presents a smooth surfacelto the weather, with themovingoints well shielded v 1 i edges of the ringsbeing chamfered'so-fthat 85' T they'bear onieitliersideoftheballsf In the 1 frommoisture and-dirt; and to provide such a device which maybedrivenby vacuuimor the compressed airffrom the engine supply under the control of a suitable throttling" valve to regulate the speed; and to provide In'the accompanying drawings'ls shown a device embodying my invention, which de-,

viceis more particularly adapted for use in connection with the cab window of aslocomotive or automotive vehicle; in which; V Figure 1 is a view of the clear 'v s1on'device in position, looking from the'front'. 1 Fig. 2 is a plan sectional view of the same, 1 so taken on the line 2,2 ofFig,

On railways great diificultyis ,m'et p'ropartially Serial 1%. 976,354,,

Fig. 31s a demiliviw'01:11amiower p ra if V of the disc, with parts brokenv away and parts Shown in sectional; r e. t

Fig. e is a vertl 'Fig. -5 is a side elevation of. Fig; l.

the line 6-6-of"Fig. 1...

Referring to thedra-wl which is .hingedatw id o; t frame 30 v the cabwindow 4. V

Thedisc is provided' with" a sash ringi Y? I whichisprovided withfan innerann'ularrev cess 6 in which the'disc lis held by'meansof; y 7 v inwwliich the disc is'mounted, and thesash extends over. and: covers thef rame flange 101 provided an annular groove 12 inJwhichthe weight and are held. in spaced firelation by v j On the inner side theballs are engaged betweengtheisash ring and-theiclampiring, the

mounting :j ust described, .the ring? is Ie'asily, balanced in the ball: bearing support;iand the g asto givei'freedom fofrmovement without'too J much playj, --Also fthe discan'd the ball'scan ring.

0f e hinge s00un cr unk in "th $1 1 porting frame'memher andjsecured thereto i Joy-thetl1if011ghjb0lts 116.f 'llhe-jrjamejswings I cal section throiighthe de- I .vioe, taken on the-line 44 of Fig.1. 55,

Fig. 6 is an; enlarged se tion, Tt'aken on a ngs, the glassfdis cfl q i is rotatably mounted i th ir 2, 60 I V '8. Suitable soft'packin'g 9 is placed around. I

which extends around the circular: aperture ring 5-is annularly recessed around the edge and provided with a marginal flangellzwhich;

On the inner'side'of lthelframe flfl geris- J ball bearings 14 5a're"seated ,athe gb'alls being prefer-ablyharrangedf in f groups 1 to"-iavoid;

"bereadily taken out bly removingithe gc'lamp The frame ring 2 isriveted to. the swinging leaf of the straphinge 1 6, thejbodygaa :over the window and rests againsltgthejframe, H r el.;. q hefppposite..$ile;9stheg z inei w i dow, and strips of felt 1'? are inserted above and below, between theframe and the win- Q dow glass t. The felt strips may be cemented,

either to the frame or to the window glass, and serve to keep the moisture and dirt out from underthe disc 1. The swinging edge of the frame is clamped in place-by means of thetoe bolts 18, which engage the edge of the frame and extend through the frame 41 of the window. The boltsjareremovably secured by p the nuts 19 which are threaded onto the bolts 0n the inner side ofthe window. 1

For driving the disc, a groove" 20 is vided in the periphery of the sash ring, the groove having suitable blades or ratchet teeth 21 icontained therein 1 for catching the air.

' The: air pressure nozzle22 is fixedly mounted on. the window frame-'4} by; means of. the clamp 23, and the'out'erf end of the nozzle 1s flattened as shownin section in Fig. 4' so as to cover a. segmental portion of the groove 20. The' edge of the ring 2 and the lower filler 17 are vcut away as shownto allow them to swing out awayfrom the nozzle.

.The nozzle is provided with asuitable. valve 25 Whichis preferably located within the cab where it is convenient for the engineer forcontrolling the speed of the disc and a connection is made by suitable pipes to the compressedair reservoirs of the engine. By

1 locating the end of the nozzleon the under side of the disc, the weight of thedisc is par tiallyfcarried by the pressure of the-air, and: the disc rotates with very little friction. i For starting the moisture to move away from the center of t'he'disc, the glass strips 28 may be used. These strips are secured to the surface .of the disc at the center by transparent cement center of the disc, which is alsothe center of thevision, is leftunobstructed. The frame partsxcan be made almost entirely by stamp= ing processes; the bearings andljoints are well protected; and the'outer surface of the de-' vice is smooth and does not offer anyz-obstructi onsforcollecting moisture and dirt. 1 Having-thus "described my invention, I

and the strips become invisible when: the disc is revolving. I L r By 'mounting the disc at the edges, the

claim-: 1

pro

7 in the sash ring, a clamp ring secured to the sash ring for holding thedisc 111 place, and

bearing-balls engaged in said recess between said rings and the flange.

4:. In combination in a clear vision device,

a frame having a circular flange having an annular recess, a sash ring fitting over the.

flange, a glass disc seated in the sash ring, a clamp ring screwed to the sashring for hold ing the disc in placejand aseries 'ofb'earing balls engaged in said recess between the two rings and the flange so that the clearance for the balls can be determined by adjusting the amp g-z i i i 5. a clear vision device, a frame having a circular aperture and *an' outwardly projecting' flange around the aperture, aglass disc,:'and a ring framefor the disc,and hearing balls engaged between the ring frame and the flange,the ring frame having an inwardly projecting flange encloslng the frame flange.

192a i i V i e ALBERT nUrP;

1. In a clear vision-device, "a ro'tata'bly' flmormted transparent plate, means for rotat-V 'ing'the plate athigh'speechand at'ransparent strip secured to'the center of-theplate for 1 propelling the moisture therefrom.

" )2. In combination in a clear vision device,

a frame having a circular aperture, a trans: 7 parent disc rotatably "mounted in the aper- 3 V ture, andineans for applyingmr pressure at the lower edge" of the disc to rotate the'fdisc at; a high speed and to partially support' the 3. In combinationina clear-vision device, aframe having-a circular flange havlng an" "annular recess, a sash ring, a glass d sc seated 

